A cracked or sun-warped cowl cap robs your mid-range punch by letting spray and hot air churn around the intake. Swap it for Mercury’s Air Dam Cap 8M0159887 and give your 30-60 HP EFI outboard the smooth, cool airflow it was built for.

• Exact OEM fit for 30, 35 Jet, 40, 50, 60 EFI—including the punchy 60R. Replaces 8M0118170 and 879147T12 with zero fuss.

• One-piece ABS composite shrugs off UV and dock bumps while weighing just over two pounds—no rattles at idle.

• Integrated “M” icon & MERCURY decals arrive factory-installed, so your cowling looks showroom fresh the minute you bolt it down.

• Internal vane design channels air across the intake plenum and sheds water before it can reach the filter, keeping temps steady on long river runs.

Installation is a Saturday-morning breeze: four screws off, four screws on, done. You’ll notice quicker hole shots, a quieter growl, and the satisfaction that every wave of cool air is hitting the flame arrestor—not swirling aimlessly under the hood. Small swap, big payoff for your trusty Mercury.